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2001 Kia Optima Problems

Faulty Throttle Position Switch

for the Kia Optima

Check Engine Light illumination—combined with a lack of power or a stumble on acceleration—may be caused by the throttle position switch (TPS). Kia released an improved part which should correct this concern.

2 Reports

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Noise or Vibration When AC Compressor is On

for the Kia Optima

A defective AC compressor clutch assembly can cause excessive noise or vibration when the air conditioning is on. Improved parts are available. Replacing the faulty clutch assembly does not necessitate replacement of the complete AC compressor or evacuation and recharging of the air conditioning system.

22 Reports

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Software Update Available Which May Correct Transmission Issues

for the Kia Optima

Reprogramming the transmission control module with the latest Kia transmission software may fix abnormalities in the automatic transmission and erroneous transmission-related Check Engine Light illumination. Software updates are commonly most effective on newer vehicles. Higher mileage vehicles may exhibit a similar symptom caused by a component failure. However, whenever major transmission repairs are performed the transmission software should be checked and updated as necessary.

66 Reports

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Battery Weak Due to Inadiquate Alternator Output

for the Kia Optima

After the vehicle has been operated with electrical loads (lights, air conditioning), a weak alternator can cause starting difficulties. In some cases, the original alternator could not sufficiently charge the battery; Kia released a new alternator which can correct this concern.

3 Reports

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Crankshaft Position Sensor May be Damaged if Timing Belt Breaks

for the Kia Optima

Timing belts can break prematurely and cause serious engine damage. When replacing a broken timing belt, the crankshaft position sensor should also be replaced as it most likely has suffered damage as well.

2 Reports

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Transmission Damage Due to Low and/or Incorrect Fluid

for the Kia Optima

Make sure the transmission is filled with Kia-approved transmission fluid and at the correct level. Our technicians tell using incorrect transmission fluid or operating the transmission when it is low on fluid can result in internal transmission damage.

12 Reports

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